MD5/SHA Hash: Understand Why Passwords Are Stored Hashed

Learning back-end security, one question is unavoidable: why store passwords hashed instead of in plaintext? Theory alone is half-understood; computing it once makes it clear.

The hash tool lets you compute MD5, SHA-1, and SHA-256 for a string, showing how 'change the input a little, the output changes entirely,' understanding one-wayness and the avalanche effect, and why the digest is stored.

It suits security teaching, principle demos, and verifying hash consistency in development.

Computing once beats reciting ten times. Bookmark the hash tool and make password-security principles visible.